<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="app">
        <!--<strong>达姆 ❤ {{flag?`周冬雨`:`迪丽热巴`}}</strong>-->
        <i>{{Math.PI}}</i>
        <i>{{Date.now()}}</i>
    </div>
</body>
<script src="./js/vue.js"></script>
<script>
    new Vue({
        el:"#app",
        data:{
            flag:true,
            count:1
        },
        mounted(){
            // setInterval(()=>{
            //     this.flag = !this.flag;
            // },1000)
        }
    });
</script>
</html>